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5-benzoyloxy-4-methyl-coumarin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

855159-99-8

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855159-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 855159-99-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,1,5 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 855159-99:
(8*8)+(7*5)+(6*5)+(5*1)+(4*5)+(3*9)+(2*9)+(1*9)=208
208 % 10 = 8
So 855159-99-8 is a valid CAS Registry Number.
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